Vulnerability-Lookup

VAR-202509-3117

Vulnerability from variot - Updated: 2025-11-18 15:36

Non-root users with legitimate write access to /etc/asterisk can exploit this behaviour by placing malicious scripts in the startup.d directory, which will then execute with root privileges upon service restart.

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CVE-2025-1131 (GCVE-0-2025-1131)

Vulnerability from cvelistv5 – Published: 2025-09-23 04:31 – Updated: 2025-11-03 17:31

Title

Asterisk Unsafe Shell Sourcing in safe_asterisk Leads to Local Privilege Escalation

Summary

A local privilege escalation vulnerability exists in the safe_asterisk script included with the Asterisk toolkit package. When Asterisk is started via this script (common in SysV init or FreePBX environments), it sources all .sh files located in /etc/asterisk/startup.d/ as root, without validating ownership or permissions. Non-root users with legitimate write access to /etc/asterisk can exploit this behaviour by placing malicious scripts in the startup.d directory, which will then execute with root privileges upon service restart.

Severity ?

7 (High)


                        
                          CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N/V:C/RE:H/U:Amber

CWE

CWE-427 - Uncontrolled Search Path Element

Assigner

Gridware

References

URL

Tags

https://github.com/asterisk/asterisk/security/adv…

Impacted products

	Vendor	Product	Version
	Asterisk	Asterisk	Affected: Asterisk <=18.26.2 (custom) Affected: Asterisk <= 20.15.0 (custom) Affected: Asterisk <= 21.10.0 (custom) Affected: Asterisk <= 22.5.0 (custom)

Credits

Abdul Mhanni

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

VAR-202509-3117

CVE-2025-1131 (GCVE-0-2025-1131)

Tags

Sightings

Nomenclature